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springfall2008 / batpred

Home battery prediction and charging automation for Home Assistant, supporting many inverter types
https://springfall2008.github.io/batpred/
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Support for GivEnergy temperature restricted charge rate #1550

Open dsteeley opened 3 hours ago

dsteeley commented 3 hours ago

Is your feature request related to a problem? Please describe. GivEnergy appear to have pushed firmware changes that restrict battery charge rates when temperature <20C. See this thread - https://community.givenergy.cloud/d/5096-battery-charge-power-27kw-instead-of-36kw/10.

Describe the solution you'd like Predbat should include the potential restricted charge rate in calculations. This may already be supported but the data on my system doesn't appear to include this.

Describe alternatives you've considered I do plan to add further insulation to my battery to mitigate this issue. A software workaround would be ideal in the meantime.

Additional context I'm unsure how we'd directly track the predicted temperature, potentially modelling exterior temperature, charge rate and other relevant factors to predict the batteries temperature and therefore whether throttling is enabled.

I'd be very happy to contribute this enhancement if it's something you'd consider.

gcoan commented 2 hours ago

One solution could be to use the new Predbat manual API capability https://springfall2008.github.io/batpred/manual-api/ and write an automation that sets the inverter_limit_charge and inverter_limit_discharge based on the battery cell temperatures